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CGFloat h = (arc4random() % 128 / 256.0) + 0.5; | |
CGFloat s = (arc4random() % 128 / 256.0) + 0.5; | |
CGFloat b = (arc4random() % 128 / 256.0) + 0.5; | |
UIColor *color = [UIColor colorWithHue:h saturation:s brightness:b alpha:1.0f]; |
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@interface UIColor (Hex) | |
+ (CGFloat)colorComponentFrom:(NSString *)string start:(NSUInteger)start length:(NSUInteger)length; | |
@end | |
@implementation UIColor (Hex) | |
+ (UIColor *)colorWithHexString:(NSString *)hex | |
{ |
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static std::string getClassName(JNIEnv *env, jobject entity, jclass clazz) | |
{ | |
jmethodID mid = env->GetMethodID(clazz, "getClass", "()Ljava/lang/Class;"); | |
jobject clsObj = env->CallObjectMethod(entity, mid); | |
jclass clazzz = env->GetObjectClass(clsObj); | |
mid = env->GetMethodID(clazzz, "getName", "()Ljava/lang/String;"); | |
jstring strObj = (jstring)env->CallObjectMethod(clsObj, mid); | |
const char* str = env->GetStringUTFChars(strObj, NULL); | |
std::string res(str); |
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JNIEXPORT void JNICALL method_name | |
(JNIEnv *env, jobject obj, jstring jstr) | |
{ | |
const char* ch = env->GetStringUTFChars(jstr, 0); | |
env->ReleaseStringUTFChars(jstr, ch); | |
} |
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iPhone 6 Plus (@3x) - 75 x 75 | |
iPhone 6 and iPhone 5 (@2x) - 50 x 50 | |
iPhone 4s (@2x) - 50 x 50 | |
iPad and iPad mini (@2x) - 50 x 50 | |
iPad 2 and iPad mini (@1x) - 25 x 25 |
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for (NSString* family in [UIFont familyNames]) | |
{ | |
NSLog(@"%@", family); | |
for (NSString* name in [UIFont fontNamesForFamilyName:family]) | |
{ | |
NSLog(@"- %@", name); | |
} | |
} |
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NSMutableArray *countries = [[NSMutableArray alloc] init]; | |
NSLocale *locale = [[NSLocale alloc] initWithLocaleIdentifier: @"en_US"]; | |
NSArray *countryArray = [NSLocale ISOCountryCodes]; | |
for (NSString *countryCode in countryArray) | |
{ | |
NSString *displayName = [locale displayNameForKey:NSLocaleCountryCode value:countryCode]; | |
[countries addObject:displayName]; | |
} |
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Width x Height | |
iPhone 4: | |
320 x 480 - portrait | |
480 x 320 - landscape | |
iPhone 4s (@2x): | |
640 x 960 - portrait | |
960 x 640 - landscape |
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if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) | |
{ | |
NSLog(@"iPad"); | |
} | |
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone) | |
{ | |
NSLog(@"iPhone"); | |
} |
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int[] intVal = new int[1]; | |
JNIEXPORT jboolean JNICALL Java_com_test_example_ChIntVal_change_int(JNIEnv* env, jobject cls, jintArray intValArray) | |
{ | |
int testVal = -1; | |
jint *exTypeVal = env->GetIntArrayElements(intValArray, 0); | |
exTypeVal[0] = testVal; | |
env->ReleaseIntArrayElements(intValArray, exTypeVal, 0); |
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